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Case Converter

Convert pasted text and naming snippets between uppercase, lowercase, title case, sentence case, toggle case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, and path/case.

lowercase

hello world example

UPPERCASE

HELLO WORLD EXAMPLE

Capitalize

Hello world example

camelCase

helloWorldExample (JS variables)

PascalCase

HelloWorldExample (class/component names)

snake_case

hello_world_example (Python/database)

kebab-case

hello-world-example (URL/CSS)

lowercase

hello world example

UPPERCASE

HELLO WORLD EXAMPLE

Capitalize

Hello world example

camelCase

helloWorldExample (JS variables)

PascalCase

HelloWorldExample (class/component names)

snake_case

hello_world_example (Python/database)

kebab-case

hello-world-example (URL/CSS)

Original

lowercase

hello world example

UPPERCASE

HELLO WORLD EXAMPLE

Capitalize

Hello world example

Title Case

Hello World Example

Sentence case

Hello world example. Next sentence

Toggle case

hELLO wORLD eXAMPLE

Original

lowercase

hello world example

UPPERCASE

HELLO WORLD EXAMPLE

Capitalize

Hello world example

Title Case

Hello World Example

Sentence case

Hello world example. Next sentence

Toggle case

hELLO wORLD eXAMPLE

camelCase

helloWorldExample (JS variables)

PascalCase

HelloWorldExample (class/component names)

snake_case

hello_world_example (Python/database)

kebab-case

hello-world-example (URL/CSS)

CONSTANT_CASE

HELLO_WORLD_EXAMPLE (constants/env vars)

camelCase

helloWorldExample (JS variables)

PascalCase

HelloWorldExample (class/component names)

snake_case

hello_world_example (Python/database)

kebab-case

hello-world-example (URL/CSS)

CONSTANT_CASE

HELLO_WORLD_EXAMPLE (constants/env vars)

dot.case

hello.world.example (package/config)

path/case

hello/world/example (path/case segments)

aLtErNaTiNg

hElLo WoRlD eXaMpLe

dot.case

hello.world.example (package/config)

path/case

hello/world/example (path/case segments)

aLtErNaTiNg

hElLo WoRlD eXaMpLe

Input Text

Paste or type text

Characters

0 / 50,000

Case Converter

Quick Start

Paste text or a naming snippet.

Choose a target case or naming format.

Review the editor result, then copy it.

To convert the result again, edit or paste it back first.

Common Scenarios

Variable/function naming

convert candidate names to camelCase/PascalCase/snake_case before using them in code

CSS/API paths

prefer kebab-case for class names and path segments to improve readability

Database fields/constants

switch to snake_case or CONSTANT_CASE to match conventions

Path-like segments

turn spaced labels into kebab-case or path/case snippets; this does not validate real file paths

APIs/routes

REST paths in kebab- or snake-case; GraphQL fields in camelCase

Docs formatting

Title Case for headings; Sentence case for paragraph openers

Multi-line name lists

paste several candidate names, convert them together, then copy the current result

Before code review

convert candidate names first, then replace them manually in code or docs

Format Reference

lowercase: hello world example

UPPERCASE: HELLO WORLD EXAMPLE

Capitalize: Hello world example

Title: Hello World Example

Sentence: Hello world example. Next sentence

camelCase: helloWorldExample

PascalCase: HelloWorldExample

snake_case: hello_world_example

kebab-case: hello-world-example

CONSTANT_CASE: HELLO_WORLD_EXAMPLE

dot.case: hello.world.example

path/case: hello/world/example

Toggle case: hello world example -> HELLO WORLD EXAMPLE

aLtErNaTiNg: hElLo WoRlD eXaMpLe

Conversion Boundaries

Format cards convert from the current original baseline; they are not a chained conversion pipeline

The Copy button copies the current editor content. Format cards switch results instead of copying

camelCase, snake_case, kebab-case, dot.case, and path/case tokenize Unicode letters and numbers; punctuation and emoji usually become separators

path/case is a path-like segment style only; it does not check file-name validity, preserve extensions, or create folders

This page does not scan code, rename files, update schemas, apply lint fixes, or generate URL slugs

Copy the current editor content when you need the result. File download, CSV/JSON export, and all-formats export are outside this tool.

Usage Advice

Frontend naming: PascalCase for components/types, kebab-case for CSS classes and URLs

Backend naming: snake_case for Python and database fields, CONSTANT_CASE for constants and env vars, camelCase where your style guide expects it

API design: keep REST paths consistent with kebab- or snake-case; GraphQL fields stay in camelCase

Limitations & Compatibility

To keep the page responsive, split very large texts instead of treating this as an unlimited batch processor

Special symbols: characters like @#$ become separators, matching the chosen naming style

Numerals: numbers stay as-is; separators are added only where digits meet letters to avoid breaking values

Privacy & Security

Case conversion runs locally in your browser. The current editor text may stay as a browser draft, and the selected category tab may be kept in browser storage. If a saved workspace or WebDAV sync is enabled, that editor text and tab preference may be saved through that sync. Converted text replaces the same editor content, and copied values are generated from that editor; this tool does not upload files, create attachments, export files, or save a separate result list.

FAQ

camelCase (userName) fits variables or functions, while PascalCase (UserName) is common for classes and components

Symbols like @#$ are treated as separators, so hello@world becomes hello_world to keep naming consistent

Unicode letters can be kept as tokens in naming formats, while emoji and most punctuation usually become separators. Case-only formats do not change scripts that have no uppercase/lowercase forms.

Use kebab-case for path-like snippets, but this page does not URL-encode text, check uniqueness, remove reserved words, or guarantee SEO-safe slugs.

No. It only converts the pasted text in the editor. Apply the result manually in your file system, codebase, schema, or documentation.

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Resources

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Preferences

All tool processing happens locally in your browser.

Case Converter

Quick Start

Common Scenarios

Variable/function naming

CSS/API paths

Database fields/constants

Path-like segments

APIs/routes

Docs formatting

Multi-line name lists

Before code review

Format Reference

Conversion Boundaries

Usage Advice

Limitations & Compatibility

Privacy & Security

FAQ

What's the difference between camelCase and PascalCase?

Why did my special characters disappear?

Will mixed-language text be changed incorrectly?

Can I use this as a URL slug generator?

Will it rename files or update code automatically?